For its size, relatively few communities can be found on Lake Winnipeg's shores, with most of these skirting the lake's southern shores. Of these, the largest are the towns of Gimli (population 1,930) and Riverton on the southwestern shore. North of Hecla Island, the only vestiges of humanity are small, isolated First Nations communities (such as Berens River, Poplar River and Norway House), most of which are only accessible by air, water or "winter roads" built on the surface of the frozen lake. (Siege of Leningrad, anyone?)